A 10-year-old boy, who also was involved in the crime spree and who previously testified against the two teens, pleaded guilty Friday to being ungovernable, prosecutor Curtis Nelson Jr. said. The boy, who remains under court supervision, has not been sentenced.

Richey convicted Spears last month on four counts of armed robbery, and one count each of attempted armed robbery, simple robbery and possession of a firearm on a school campus.

Dorsey, who was on probation with Juvenile Court and wearing an ankle monitor at the time of the crime spree, pleaded guilty to one count of armed robbery, two counts of attempted armed robbery and one count of simple robbery and testified against Spears.

East Baton Rouge Parish District Attorney Hillar Moore III said the sentences were appropriate for the teens’ behavior.

Nelson said the crime spree began Sept. 18 and ended Sept. 29, when the boys were arrested.

Police say the boys robbed six people at gunpoint, including a pregnant woman. The 10-year-old testified that Spears held a gun to her stomach during a robbery in the Belfair neighborhood.

LSU police arrested the older boys on campus and discovered their guns. They also reported one of the suspects had an ankle monitor. The robbery victims reported seeing an ankle monitor, helping link the suspects to the crimes, police said.